February 1st, 2014 (F1plus/J Leslie).- Rob White, deputy managing director (technical) at Renault Sport F1, says the issues with the French supplier's V6 Turbo power-units have been unacceptable. Toro Rosso, Caterham and Red Bull Racing all lost crucial track time at the Spanish circuit due to mechanical gremlins with the new engine and ERS system. Renault-powered teams only completed 151 laps over the course of the four days, in comparison to 875 for Mercedes and 444 for Ferrari. For more stats and facts from the test, go here. "We have not run enough laps, and when we have they have not been run at an acceptable performance level," White said. "The underlying causes are...
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